Rotary motor.



No. 7|0,5|0. v Patented Oct. 7, l902.-

P. PHILIPPON .& m. CHEVALI'ER. ROTARY MOTOR.

Application filed Max-.21, 190 2.)

(No Model.) 4 Sheets-Sheet I.

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No. 710,510. Patented on. 7, 1902.

P. PHILIPPON &. m. CHEVALIEB.

ROTARY MOTOR.

(Application filed. Mar. 21, 1902.) (No Model.) LSheets-Sheet 2.

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No. 710,510. Patented Oct. 7, I902.

P. PHILIPPON & M. (:HEVALIER.

' ROTARY moron.

(Application filed. Mar. 21, 1902.)

(No Model.) 4 Sheets-Sheet 3.

Patented Oct. 7, I902;

P. PHILIPPGN 8y. M. CHEVALIER.

ROTARY MOTOR.

(Application flied. Mar. 21, 1902.)

4 Sheets-Sheet 4.

(No Model.)

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"UNITED STATES PATENT OFFICE.

PROSPER PHILIPPON AND MARIUS CHEVALIER, OF PARIS, FRANCE.

ROTARY M OTO R.

SPECIFICATION forming part of Letters Patent No. 710,510, dated October1 2- I Application filed March 21. 1902. Serial No. 99.366. (No model.)

To rtZZ whom, it TH/(I/Z/ concern:

Be it known that we, PROSPER PnILIPPoN and MARIUS CHEVALIER, citizens ofthe French Republic, residing and having our post-office address at 39Rue de Richelieu, Paris, France, have invented certain new and usefulImprovements in Rotary Motors, of which the following is aspecification.

The present invention relates to a rotary motor with variable expansion.The disadvantages of all motors of this kindthat is to say, thevibrations caused by centrifugal force and the want of tightness of theparts are overcome by this improved motor. All the parts in the presentmotor are balanced, and the tightness increases with the pressure. Thiseffect is obtained by means of an arrangement which has, among others,the advantage of automatically taking up the play caused by the wear ofthe parts. Under these circumstances the present motor is as economicaland less cumbersome than the best steam-engines.

In the annexed drawings, Figure 1 is a longitudinal central section withparts in elevation. Fig. 2 is a central horizontal section. Fig. 3 is across'section on line 2 2 of Fig. 1 with the parts in a differentposition to Fig. 2. Fig. 4 is an end view of the interior of one of theoil-chambers. Fig. 5 is a cross-section of the distributing-disk on line(L b of Fig. 6. Fig. 6 shows in plan view on the right a half view ofthe outer surface of one of the plates of the disk and on the left ahalf view of the inner surface of the other plate of the disk. Figs. 7to 12 are detail views, respectively, of each of the two partsconstituting the closing plate or valve. Figs. 13 and 14 are elevationand side view, respectively, of the various parts constituting thepiston..

The motor shown as an example comprises, essentially, two annularchambers or cylinders 1 and 2 of rectangular cross-section provided inthe casing parts 3 and i; but it may also comprise a larger number ofconcentric chambers or cylinders of any suitable sec tion in order torender the motor compound, the fluid after partially expanding in onechamber completing its expansion in an adjacent chamber or cylinder.

The following description refers to-a motor with a single chamber ineach casing part; but it can also be applied to a motor having a numberof such chambers. The chambers 1 and 2 are arranged opposite each otherand are separated by a movable disk or partition, preferably made in twopieces 5 and 6. The said disk effects the distribution and carries oneach of its surfaces two blocks 7 7 with extensible side surfaces,whichform pistons nular chambers 1 and 2, in which they slide withslight friction, these chambers constituting the cylinders for the saidpistons. The casing parts 3 and 4: are provided with central sockets Sand 9, carrying adjustable truncated conical bearings and 1 1, adaptedto take up the play produced by the wear of the shaft without changingthe tighteningrings 12 and 13. The casing parts also carry the flanges14 and 15, with an annular grooveand-tongue joint containing an elasticpacking 16 permitting a micrometric tightening by means ofsuitably-divided nuts. A slot 17, Fig. 3, is provided in the casing part3 and has the form of a horn. Its inner edge is concentric to themotor-shaft, while its outer edge is of such eccentricity that the saidslot progressively narrows in the direction of the rotation of theshaft. At a point of the circumference of each casing part is provided afree outlet-aperture 18, Fig. 3, and in the wall of the cylinder anopening 19, closed by a glass plate, serves for observing the action ofthe motor. In the annular chambers 1 2 of each casing part is a cavityin which is arranged a closing-plate 20, driving-plate 21, and the twokeys 22 and 23, Figs. 1, 2, and 3. At the back of the chambers 1 and 2the casing parts are each hollowed out, so as to form oil-chambers 24and 25, closed by covers 26 and 27,

respectively, and communicating, by means of the passages 29 and 75,with the space 28 between the circumference of the disk 5 6 and casingparts 3 4:. These oil-chambers also communicate with each other by meansof the orifices 31, 32, 33, and 34, Fig. 6, and with the oil-purifier35, Figs. 1 and 2, the one by the channels 36 and 37 and pipe 38, theother by the channel 40 and pipe 39.

and adapt themselves to the shape of the an- 41 and 42 are cocks foremptying the oilchambers, and 43 and 44 are cocks for regulating thecirculation of oil.

45 and 46 are passages for oil for lubricating the shaft 47, carryingthe disk 5 6.

48 is a gage for indicating the oil-level; 49, an oil-feed cup; 50, anair-valve for outlet of air for facilitating the filling; 35, a purifiercomposed of a certain number of finely-perforated cylindrical tubes 40,which are traversed by the oil before arriving in a central compartmentinto which the pipe 39 opens.

40", Fig. 2, is a cock for emptying the purifier.

51 is a steam-supply pipe; 52, a valve for controlling the admittance ofthe motive fluid; 58, a chamber receiving steam; 54, the conduit throughwhich the steam passes to the slot 17.

56 is a valve for controlling direct admittance of steam into thecylinder 1 for starting during the period of expansion.

The distributing-disk, Figs. 5 and 6, is composed of two plates 5 and 6,mounted on one another by an annular groove-and-tongue joint andprovided with double adjustable pressure-rings 64 and 65, having elasticpackings 66 and 67. The plates 5 and 6 may be brought toward or awayfrom each other by sliding on the key 62 and guides 63. The planesurfaces of the two parts of the grooveand-tongue joint are providedwith semicylindrical radial grooves arranged opposite each other, thusforming cylindrical conduits filled with flexible thread or the like,66, forming joints and dividing this part of the disk into independentradial compartments 69, which communicate with the chambers or cylindersby means of the small holes 70. A triangular orifice 71 passes throughthe two parts of the disk between the regulator and piston and suppliesthe cylinder 2 with steam. Two hollowed-out portions 72 and 73 exactlybalance the piston.

The play of the disk described above is automatically taken up by themotive fluid. However, the same result can be obtained by means of anarrangement utilizing centrifugal force. In this case the space betweenthe two plates is obtained by means of several rods working during-theperiod of compression placed at an equal distance from each other andarranged between the two plates. The said rods are smooth at one end andscrew-threaded at the other. Their smooth end can freely pivot on one ofthe plates,

while the other is screwed into the second plate. They carry in thecenter of their length a perpendicular arm provided with a counterweightarranged in such a manner that the centrifugal force acting on the saidcounterweights forces the latter by means of the arms to unscrew therods by a fraction of a revolution, and consequently removes the platesfrom each other until the adherence of the rubbing-surfaces beingsufficient '91, on which it can slide.

the counterweights are stopped and maintained in that position by asystem of pawls preventing their return. The play of the disk instead ofbeing automatically taken up may have any suitable adjustment, in whichcase the two plates are joined together in the center. The plates mayalso be made in two parts with a central connection,radial groovesreceiving slightly conical micrometrical pins which are prolonged byscrew-threaded rods screwed into the joining-surface of the plate. Bytightening or loosening the said pins the spacing of the plates isadjusted.

The regulator, Figs. 5 and 6, consists of a long block 74, adapted tomove freely in a radial groove 75 in the plate 5 and fastened to twosprings 76 and 77, 'Fig. 3, arranged opposite to each other, tending tobring the block nearer the shaft, and fixed to the adjustable screws 78and 79. A passage 80 in the regulator allows the steam to pass into thecylinder 1 when it is in communication with the slot 17.

Figs. 7 to 12 refer to the parts composing the closing-plate. Thedriving-plate 21, hollowed ont annularly at 81, is mounted on adouble-cranked shaft 82, which carries two crank-pins 83 and 84 andtraverses the oilchamber 24, Figs. 1, 2, and 4. A notch 87in itscircumference receives the narrow circular flange 83 of theclosing-plate 20, which is connected with the plate 21 by the pins 89 90The closing-plate 20 in the form of a portion of a cylinder is providedwith a hollow 92, Figs. 1 and 2, for receiving the pressure of thefluid, which presses it strongly against the disk 5 6, its opposite endcarrying in a groove an elastic packing 93, which constantly maintains afacing-piece 94 against the surface of the disk, with which it forms atight joint. The keys 22 and 23, Figs. 1, 2, and 3, before referred to,fill the unoccupied space and guide the piston and plate 21. A space 95for receiving the closing-plate 20 is left behind the key 23, and forthe purpose of balancing the pressure on the latter it receives thefluid through the holes 96.

The oil-chambers 24 and 25, Fig. 4, contain the mechanisms for operatingthe closingplates. The said mechanisms, which are similar, each comprisetwo cams 97 and 98, secured to the shaft 47. The pins 83 and 84 of thecranked shaft carry rollers 100 and 101, which are in continuouscontact, the one, 100, with the circumference of the cam 97 and theother, 101, with the circumference of the cam 96.

Each piston 7, Figs. 13 and 14, consists, essentially, of a trapezoidalpiece 102, fixed on the disk 5 or 6 by means of the pins 103 and 104. Oneach side of the piece 102 is arranged a segment 105 and 106, made infour parts projecting over each other and guided by means of the pins107 sliding in the slots 108 in said piece 102. An inner elastic ring109 exercises a continuous outward-pushing action of the segmentsagainst the walls of the chambers 1 and 2, and their position is assuredby the plates 110 and 111 each bearing on a ring 112, fixed to the piece102 by means of screws 113. A triangular part 11-1, fixed on the plate110 and so arranged as not to cover the aperture 71, lengthens thepiston and reduces the unoccupied space.

The operation of the apparatus is as follows: The motive fluid underpressure controlled by the valve 52 passes successively into the chamber58, conduit 54, hole 17, and channel 80 of the regulator and arrivesbehind the piston in the chamber or cylinder 1, wherefrom it passesthrough the aperture 71, Fig. 3, to behind the piston 7 in the chamberor cylinder 2. The plate 20 is in its closed position, Fig. 3. Theoutlet-aperture 18 being constantly open, the pressure is consequentlysimultaneously exercised on one side of each of the pistons 7, whichrevolve in the chambers 1 and 2, at the same time driving the disk 5 6,the shaft 47, and the pulley 115; but when the channel 80 of theregulator is no longer in communication with the slot 17 the admissionof motive fluid ceases and expansion takes place until the piston haspassed the orifice 18, when the fluid escapes either into the open airor to a condenser. (Not shown.) At this moment and simultaneously forthe actuating mechanisms of both closing-plates the cam 97 strikes theroller 100 in order to cause the cranked shaft to vibrate,vandconsequently also the plate 21 and closing-plate 20. The chambers 1 and2 are thus left free, each plate 20 being now in the space 95 behind thekey 23, and the pistons continue their revolutions. However, as soon asthe piston has passed beyond the locality of the plate the cams 97 and98 act in the opposite direction and bring the plate back into itsclosing position, the motive fluid being again admitted to the disk5 and6 and shaft 47. As the speed increases the block 745 of the regulatormoves away from the shaft 47, the channel 80 moves away from the center,and by reason of the shape of the slot 17 admission ceases sooner thegreater the distance of the block 74: from the centerthat is to say, thegreater the speed. The fluid under pressure in the chambers l and 2passes through the passages into the chambers 69 between the two partsof the disk 5 and 6. The surface of the said chambers beinglarger thanthe corresponding surface of the annular opening of each chamber, thetwo parts of the disk 5 6 tend to move slightly away from each other inorder to bear perfectly against the walls of each chamber. Thisarrangement maintains the tightness and assures the automatic taking upof play between the disks and easing.

Then the disk 5 U is made in a single piece, the tightness is obtainedby tightening the rings 14 and 15, between which is placed the elasticpacking 16, by means of micrometernuts 116, having very fine thread.

The arrangements described above assure perfect tightness.

Automatic lubrication is obtained in the following man ner Theoilintroduced through the oil-cup 49 passesinto the oil-chambers 25 and24 and purifier 35. The disk tends to suck in the oil in the center,since the contrifugal force forces it through the conduits 2.) and 30and groove 75, Fig. i), to the circumferential space or channel 28,Figs. 1 and 2, by which it is forced back to the purifier through theconduits 36 and 37 and pipe 38, whereupon the oil is drawn through thepipe 39, cook 44, and passage 40 back into the oilchambers, and so on, acontinuous stream of purified oil, which can be, regulated by the twococks 43 and 44, being thus assured in the motor.

The general arrangement of the present motor as described abovecomprises two casing parts arranged face to face, the chambers oppositeeach other and the pistons mounted on a single disk placed between thetwo casing parts. It should, however, be remarked that the presentinvention can also be carried out by arranging the casing parts back toback with the chambers directed outward; the pistons are in that casecarried by two disks each in a single piece, one of which is fixed onthe motor-shaft and may constitute the driving-pulley and the other mayslide slightly on a suitable key on the said motorshaft, in such amanner as to allow by means of a micrometer-nut, and exactly regulatingthe distance of the two disks, and also taking up the wear of the partsin contact and completely assuringthe tightness. This arrangementcomprises the same parts as those already described, said parts beingdisposed suitably to the said arrangement; the two closing-platesespecially will in this case be operated by a single cam mechanism, saidmechanism being arranged in the central part of the two casing parts.This kind of motor similarly to that described may be provided with asingle chamber or cylinder or with a number of such chambers for thepurpose of rendering the motor compound.

WVhat we claim is- 1. A rotary motor comprising in combination twocasing parts one of which contains admission conduits and ports for themotive fluid, said parts being connected with each other and providedwith annular chambers open each on one side, a rotary disk mounted inrelation to each said annular chamber to close the open sides thereof,said disks con taining passages for the motive fluid cooperating withthe ports of the casing and leading to the annular chambers, two pistonsICC mounted on said disks respectively,and adapted to move in the saidchambers,closing-plates adapted to move across the said chambers andaway from the same at the passage of the piston, cam mechanism operatedby the motorshaft for moving said closing-plates, a regulater movable inthe interior of the disks under centrifugal force, and springs forregulating the movement of said regulator, said regulator being adaptedto cooperate with the ports of the casing to cut ofi the admission ofmotive fluid to the disk sooner or later in proportion to the speed ofrevolution.

2. A rotary motor comprising in combination two casing parts, one ofwhich contains admission conduits and ports for the motive fluid, saidparts being connected with each other and provided with annular chambersopen each on one side, a rotary disk mounted in relation to each saidannular chamber to close the open sides thereof, said disks containingpassages for the motive fluid cooperating with the ports of the casingand leading to the annular chambers, two pistons mounted on said disksrespectively and adapted to move in the said chambers, closingplatesadapted to move across the said chambers and away from the same at thepassage of the piston, cam mechanism operated by the motor-shaft formoving said closingplates, a circuit of passages for permitting acirculation of oil through the motor induced by the centrifugal forceexercised by the retary disks and an oil-cleanser in said circuit.

3. In a rotary motor, the combination of two casing parts providedrespectively-with annular chambers open each on the side adjacent to theother and a distributing-disk adapted to occupy the space between saidchambers, and to severally close the same, this distributing-disk beingformed of two plates mounted on the motor-shaft in such a manner as tomove longitudinally thereon and mounted on each other by means of agrooveand-tongue joint with interposed packings, the interior surfacesof said plates being provided with radial coincident grooves withelastic packings in said grooves dividing said plates into independentradial compartments having means of communicating with the aforesaidannular chambers, and means for admitting pressure of the motive fluidto cause each of the plates of the disk to be pressed against thefriction-surfaces of the corresponding casing part.

4:. A rotary motor comprising in combination, two casing parts one ofwhich contains admission conduits and ports for the motive fluid, saidparts being connected with each other and provided with annular chambersopen each on one side, a rotary disk mounted in relation to each saidannular chamber to close the open sides thereof, said disks containingpassages for the motive fluid cooperating with the parts of the casingand leading to the annular chambers two pistons mounted on said disksrespectivelyand adapted to move in the said chambers, closingplatesmounted each on a plate, a doublecranked axle provided with rollers andcarrying said plate, two cams mounted on the motor-shaft and adapted tocooperate with said cranked axle, to vibrate the same and to move theclosing-plate in an arc of a circle intersecting the respective annularchamber.

In witness whereof we have signed this specification in the presende oftwo witnesses.

PROSPER PHILIPPON. MARIUS CHEVALIER.

itnesses:

LoUIs PARENT, EDWARD P. MACLEAN.

